01 · From £4,000
Build a client’s first version
Turn your brief into a working web or mobile app. We agree the features, who supplies the designs, and what testing, deployment and handover include before I start.
App developmentFor agencies
Build, fix and launch your clients’ apps.
Bring me in to build a client’s app from an agreed brief, or to finish, fix and launch a product they’ve already started. I work under your name where needed, while you keep the client relationship.
White-label development
Where I fit
You manage the client. I do the engineering.
02 · £400–£750
Review an app before you commit
Get a technical second opinion before you commit to finishing an existing app. You receive findings, evidence and a prioritised repair plan your team can use.
Production-readiness audit03 · £1,000–£2,000
Fix a problem or unblock a release
Fix a broken user journey, signing issue or build failure, or get help with a store submission or review response. We agree one repair or release task and the review-response rounds included. Apple or Google decides approval.
Focused repair04 · £2,500–£5,000
Finish and launch an existing app
Complete a set of connected fixes, improvements or release tasks for your client’s app. I handle the agreed changes and provide a written handover for your team.
App completion & launchNew builds start at £4,000 for a first version with agreed features. Each quote sets out the work included. After delivery, limited maintenance is available to existing clients.
Working together
You keep the client relationship.
We agree who speaks to the client, how updates are shared and whose branding belongs on the handover. White-label work stays confidential; a project does not become a public case study without separate written permission.
Our agreement sets out the included work, exclusions, acceptance checks, price and dates. I work in accounts you or the client own. You receive the agreed code, verification notes and handover instructions so another engineer can continue the work.
I work primarily with React, Next.js, React Native / Expo and Supabase. I take on first versions and specific improvements to existing products. For a new build, we agree the platform, core user journey and who supplies design and content. Penetration testing requires a separate specialist.
Most updates happen in writing. App completion work normally takes 2–4 weeks; new-build dates depend on what we agree to build. Calls are available on UK evenings and selected weekends. Check my availability before promising your client a start date. I do not provide 24/7 production support.
Meet the engineer
Ahmed Gadir, senior engineer in London.
Eight years of engineering experience since 2018, including enterprise React platforms and taking my own Expo app, ArabyBuddy, through Apple’s and Google’s review onto both stores in 2026.
Have a project in mind?
Send the brief or existing product, the outcome you need, your budget and preferred timing. Include the stack if it is already chosen. The free fit check is a chance to discuss whether I can help. You can start with an idea; you do not need a repository or a paid code audit to have that conversation.